18885252 has 12 divisors (see below), whose sum is σ = 44065616. Its totient is φ = 6295080.

The previous prime is 18885233. The next prime is 18885253. The reversal of 18885252 is 25258881.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 18885252.

It is not an unprimeable number, because it can be changed into a prime (18885253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 786874 + ... + 786897.

Almost surely, 2^18885252 is an apocalyptic number.

18885252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18885252 is an abundant number, since it is smaller than the sum of its proper divisors (25180364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18885252 is a wasteful number, since it uses less digits than its factorization.

18885252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1573778 (or 1573776 counting only the distinct ones).

The product of its digits is 51200, while the sum is 39.

The square root of 18885252 is about 4345.7165116929. The cubic root of 18885252 is about 266.3018977940.

It can be divided in two parts, 1888 and 5252, that added together give a triangular number (7140 = T₁₁₉).

The spelling of 18885252 in words is "eighteen million, eight hundred eighty-five thousand, two hundred fifty-two".